196897199 has 2 divisors, whose sum is σ = 196897200. Its totient is φ = 196897198.

The previous prime is 196897193. The next prime is 196897307. The reversal of 196897199 is 991798691.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196897199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196897193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98448599 + 98448600.

It is an arithmetic number, because the mean of its divisors is an integer number (98448600).

Almost surely, 2^196897199 is an apocalyptic number.

196897199 is a deficient number, since it is larger than the sum of its proper divisors (1).

196897199 is an equidigital number, since it uses as much as digits as its factorization.

196897199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 59.

The square root of 196897199 is about 14032.0062357455. The cubic root of 196897199 is about 581.7635571564.

The spelling of 196897199 in words is "one hundred ninety-six million, eight hundred ninety-seven thousand, one hundred ninety-nine".